Improvement in ore-washers



J. RICHARDS.

ORE-WASHER.

Patented May 29,1877.

Witnesses UNITED STATES PATENT OFFIC JOSEPH RICHARDS, OF BATTLEMOUNTAIN, NEVADA.

IMPROVEMENT IN ORE-WASHERS.

Specification forming part of Letters Patent No. a 91, 8'70, dated May29, 1877 application filed April 13, 1977.

To all whom it may concern Be it known that I, JOSEPH RICHARDS, ofBattle Mountain, county of Lander, and State of Nevada, have invented anImproved Automatic Buddle; and I do hereby declare the following to be afull, clear, and exact description thereof, reference being had to theaccompanying drawings.

My invention relates to certain improvements in buddies or ore-washers;and it consists in a novel arrangement for automatically discharging thepulp upon the inclined surface of the buddle, and at the same timedelivering upon the inclined surface by the same automatic arrangementany number of moving uniformly directed jets or streams of water forwashing the ore and carrying away the light portions, all as hereinaftermore fully described.

Referring to the accompanying drawings, Figure 1 is a perspective view.

Let A represent a circular pan, the bottom of which is inclined orconvex. In the center of the pan is a circular raised portion, B, thesurface of which is inclined or descending from its center to its outeredge. 0 is a timber which extends across above the center of the pan,and is supported by uprights D D. e is a vertical shaft, which isstepped in the center of the raised portion B of the v pan, while itsupper end is secured in a suitable bearing in the cross-timber G. F isan upright cylinder, which surrounds the shaft 0, and is permanentlysecured to it, so that it will rotate with the shaft. Outside of thecylinder F another cylinder, H, of larger diameter, but which is shorterthan the cylinder e, is secured by suitable connections,

so that both cylinders will rotate with the shaft 0.

The bottoms of both' of these cylinders are tightly closed, while theirupper ends are flared,

as represented.

I I are hollow arms, which extend outward horizontally from the insidecylinder F. These arms pass through the outside cylinder H, and extendto the outer rim of the pan A, and are slightly curved in one direction.

J J are short hollow arms, which project horizontally from the outsidecylinder H, and extend out to the outer rim of the raised portion B.

The outer ends of the tubular arms I and J are closed, and a small hole,1:, is made on one side of the arms J, above the outer rim of the raisedportion B, while a number of small holes, 0 O O, are made along one sideof the arms I, above the inclined surface of the pan, outside of theraised portion.

It will now be perceived that this combination of upright shaft,concentric cylinders, and radiating arms form a compound Barkers mill,which will be rotated by the reaction of the water which escapes fromthe holes in the arms. 7

In practice, the pulp is delivered by a sluice, trough, or other meansinto the upper end of the outside cylinder H, while clear water isdelivered by a suitable spout into the inner cylinder F. The water willthen fill the arms I, and be delivered in a line of small streamsthrough the holes 0 O 0 upon the inclined surface of the pan. Thereaction of this escaping water will cause the entire device to rotatein a direction opposite to that in which the streams are projected. Atthe same time the pulp is discharged through the holes 1; in the arms Jupon the outer edge or near it of the raised platform B, and flows downalong the inclined bottom of the pan, where it is acted upon by thesmall jets or streams of water, by which it is washed, and the lighterportion separated.

This arrangement of the water-jets forms what I call a hydraulic brush,which is automatically caused to sweep over the surface of the pan onwhich the pulp is spread, and by their gentle washing action separatethe particles, and carry off the lighter portions down the inclinewithout plowing or disturbing the body of pulp.

This device is extremely simple and inexpensive, as the operation iscontinuous and nected together, and mounted on the vertical shaft 6, soas to operate substantially in the manner and for the purpose abovedescribed.

In witness whereof I have hereunto set my hand.

JOSEPH RICHARDS.

Witnesses:

O. '1. STACY, FRANK A. Bnooxsl

